Beating engine



Sept. 4 1928. Q

J. D. HASKELL BEATING ENGINE Filed 18, 1926 4 Sheets-Sheet 1 J. D.HASKELL HEATING ENGINE Filed May 18, 1926 4 Shee ts-Sheet 2 W v m fifiiu Sept. 4, 192's. 1,683,546

- J. 1:) HASKELL Y BEATING ENGINE Filed May 18, 1926 4 Sfieets-Sheet 5MIT ass W IGMMVW 16 7-70 New J. D. HASKELL BEATING ENGINE Filed y 1926 4Sheets-Sheet 4 WIT/V553 I NVENTOR Ym TTOR/Yfyg Patented Sept. 4, 1928-unrreo STATES IZATENT OFF I C E'.

JOHN D. HASKELL, O1" FULTON, NEW YORK, ASSIGNOR TO DILTS MACHINE WORKSINCORPORATED, OF FUL'IYON, NEW YORK, A CORPORATION OF NEW YORK.

BEATING ENGINE.

Application filed May 18,

The invention relates to a beating engine for reducing paper stock totherequired consistency for manufacture into paper and involves the useof a vat or tub in which r the stock is ground, comminuted orjredared toa finely divided state and circulated through connected channels in theint by means of a rotary beater roll hav-, in peripheral vanes or flybars movable in one of the channels of the vat in grinding co-actionwith an underlying relatively stationary abrasive bed or cutter blades.

The heater roll is located near the outwardly rounded rear end of thetub which together with the baokfall, rear end of the back channel,doctor and cover plate are constructed in such manner that the paperstock (and particularly the thinner stock) carried over the backfall bythe beater roll will be thrown by centrifugal force directly into theback channel for returnatherethru to the front side of the beater rollchannel aided by the suction produced'at the front side oi? the beaterroll-thereby accelerating the flow of the stock away "from the beaterroll thru the back channel and return to the front side of the beaterroll, all of which greatly reduced the load upon and power required foroperating the beater roll and affords a freer and more expeditions circulation of the stock than has heretofore been practised.

The supporting shaft "for the beater roll usually extends throughopenings in opposite sides of the tube and is journaled in verticallymovablebearings to allow for a limited vibratory or jumping movement ofthe beater roll incidental to its action upon materials of widelyvarying resistances to cutting or grinding and one of the objects ofthis invention is to provide a more flexible, permanent and efficientpacking-box means f" sealing the shaft openings in the sides of the tubagainst leakage of liquid stock or water. therethru than has heretoforebeen practised.

Another object-is to provide a flexible doctor which will automaticallymaintain scraping contact with the edges of the fly bars under thevibratory or jumping movements of the beater roll and thereby assure amore continuous deflection and circulation of tlie main body of thestock over the backfall than has heretofore been practised.

' A further'object is to provide a more con- 1926. Serial No. 109,898.

venient and expeditious means for clamping and releasing the cover plateor door for the bed plate chamber and at the same time to assure aliquid tight joint between the door and end walls of the chamber whenthe door is clamped in its operative position.

Another object is to provide the lowest point of the bottom ofthe tubWith a quick opening dump valve which is adapted to swing downwardlyfrom its closed position in the direction of discharge of the stock soas to leave a free and unobstructed passage for the stock along thebottom of the vat to the discharge opening. Y

Another object is to provide a wash-out device constructed and locatedin such inannor as to etlcct a more complete and thorough flushing ofthe inner walls of the vat than has heretofore been practised.

Other objects and uses relating to specific parts of the apparatus willbe brought out in the following description;

in the drawings Figure 1 is a top plan of a beaterengine embodying thevarious features of. the invention". I

Figure is a longitudinal vertical sec tional view taken on line 2-2,Figure 1.

Figure 3 is a transverse vertical sectional View taken in the plane ofline 3-3, Figure 2.

Figure 4. an enlarged vertical sectional View. partly broken away,through the upper portion ot the vat showing a portion of the beaterroll and portions of the doctor or flexiblescraper for removing thestock from the fly bars of the beater roll.

Figure 5 is a detail sectional view. taken in the plane of line 5-5,Figure 4.

Figure -6 is an enlarged detail sectional 9 view of the outer side ofthe vat atthe end of the bed plate showing one of the clamping means forholding the cover plate in its closed position. A

Figure 7 is an enlarged longitudinal sectional view taken on line 77,Figure 1, showing the means for sealing the shaft opening for the beaterroll in one side of the vat. a

Figure 8 is a transverse sectional view taken in the plane of line 8-8,Figure 7.

Figure 9 is an enlarged sectional view taken on line 99, Figure 1,showing the discharge nozzle for the wash-out device and its relation tothe back-channel of the vat.

Figure is an enlarged view taken on line 10-10, Figure 1, showing thevalve for con-- -1-, upright substantially straight side ill , -14:-within the channel -8 adjacent the;

walls 2- and outwardly curved substantially semi-cylindrical end walls-3- together with a mid-feather 4- and hood sections -5-, 6- and -7-,the ends of the mid feather being spaced some distance from thecorresponding end walls 3 to form connecting passages between theadjacent ends of the unflow and return channels as -8 and -8'.

The tub is provided with a suitable backfall extending upwardly from thebottom thereof to any desired height, preferably somewhat above thecenter of the beater roll and adjacent the rear end of the midfeather,the bottom of the tub between the backfall and the outwardly roundedrear end of the tub being preferably concaved longitudinally to form abowl -10 into which the stock is precipitated after passing over thebackfall.

Tim bottom of the bowl 10- is also inclined laterally and downwardlyfrom the outer side wall of the beater channel 8- to the channel 8 whichlatter is inclined longitudinally from end to end of the vat, and returninto the channel -8- to a point as -11 at the front of the beater roll,said point 11- being the lowest level of the ottom of the circulatingchannels so that the stock passing over the backfall will flow more orless rapidly from the bowl -10 laterally and downwardly along thechannel S- returning into the front end of the channel -8 to the lowestpoint, -11 where it may be discharged when desired thru an outletconduit\-12- in a manner hereinafter more fully described.

It is evident, however, that this circulation of the stock through thechannels of the tub may be continued indefinitely or until the stock isreduced to the required consistency. j

A beater -13- having a suitable fly bars -13'- is mounted upon asupporting shaft front face of the backfall 9- to cooperate with anunderlying bed plate --15 in the bottom of the vat for reducing thepaper stock to the required consistency and for calculating said stockthrough the channe s of the vat.

The shaft 14.- extends through openings 16,in opposite sides of the vatand also through an opemng 16 in the midfeather 4-- and is preferablyjournalcd in external bearings l7- and provided at one end with a pulley-18- which may be connected to any available source of neeasee power fortransmitting rotary motion to the shaft and heater roll.

Any movable means, not shown, may be employed for supporting thebearings -17 and incidentally the shaft -14- and heater roll 13- topermit such vertical vibratory movement of the beater roll and supporttherefor as may be caused by the action of the beater roll, uponmaterials of widely varying resistances to disintegration and foradjustment of height of beater roll and'it,

therefore, becomes necessary to provide some means for reducing to aminimum the liability of leakage of the water through the shaft openings-16 in the side of the vat.

Packing bow for beater shaft.

For this latter purpose is provided special forms of packing boxesconsisting in this instance of flexible diaphragms 18- of rubber orequivalent resilient material, one for eachaopening and inasmuch as bothpacking boxes are alike the description of the construction of one willserve for both.

Each diaphragm is of sufficient area to cover and extend some distancebeyond the walls of its opening -16- and has its marginal edge securedby clamping rings -19-- and bolts 20- to the inner face of the adjacentside of the vat as shown more clearly in Figures 7 and 8, said diaphragmbeing provided with a central opening -2l-- fof1 receiving the shaft -14of the beater r0 A sectional gland box 29r has its marin'al edge securedby rivets '--23- or equivalent fastenin means to the diaphragm l 8 arounthe central opening 21-- to extend around the adjacent portion of theshaft 14 and is provided with an annular groove 24 for receiving a pack-Inn ring in close cdntact, with the periphery o the shaft to form awater tight joint therewith and still permit the free rotation of theshaft therein and to ether with the diaphragm -18efiective y seals theopening --16 against' leakage of water therethrough from the interior ofthe vat while the flexibility of the diaphragm permits limited vibratorymovement of the shaft and heater roll thereon.

The land rings 22. and 25- are prefera ly made in two parts to permitthem to be more easily laced upon or remove from the shaft and aresecured together by clamping bolts --26-, Fig. 8.

Flexible doatorfor beater roTl.

Owing to the vertical vibration or jumping movement of the beater roll,and the necessity of vertical adjustment during its coaction with thebed plate upon widely varying conditions of the stock considerabledifficulty has been experienced in removing the stock from the fl barsas it is-carried u wardly against t e front face of the bac "fall and inorder to overcome this difiiculty adoctor plate -27- is adjustablysecured by bolts '28 to the front edges of the hood section 6- forreceivin and su porting a flexibl'e'scraper -i-29-- steel ca 1e orequivalent material which is secured thereto by a clamping bar .30-- andbolts valve being --31- so that its free edge may project into the athof movement of the outeredges of the y bars -13'- in all positions ofvibration or vertical movement of the beater roll, the plate 27-' beingslotted at --27",to

permit the entire'doctor to be adjusted tow stock from thefiy bars andthe deflection thereof over the backfall thereby assisting in theuniform, and continuous circulation of the stock.

Dmnp 'vabve.

Theupper end ofthe discharge conduit --12"- is embedded in the concretebottom '-1 at its lowest point '11- and is provided with a top plate-32forminga continuation of the bottom of thisportion of the vat'andprovided with adischarge opening 32" which is controlled by a valve 33.

This valve is hinged at to the undersideof' the plate 32 at one sideot-the opening32- to swing downwardly in and lateral fromitscloseduposition shown by full lines to its open position shown by dottedlines, Figure 10, a portion of said 32--"w portion is somewhat largerand isjadapte to en age apacking ring '-'35--"to make a 1i ui tight ointtherewith.

t will be observed that the valve 33- when opened swings in thedirection of-discharge of the stockentirely clear of the opening -32-thereby afiordin'g a free and unobstructed passage of the stock from theinterior of t e vat through the opening 32 and into the discharge pipe-12-.

" Wah out device.

It will be noted that'the bottom of the channels through which thestockis circulated is concaved in crosssection by banking the marginal edgesthereof against the outer side walls of the vat and also against theopposite sides of the mid-feather 4- to assure a freer flow of the stockthrough said adapted -to enter the opening en closed while itsunderlying channel and also to facilitate the thorough flushing of theinterior of the tank and complete dischar e of the stock from the lowestpoint of theottom when desired.

v The means for flushing the tank consists of a water supply pipe -36adapted'to be connected to any available source of water supply underpressure and provided withoa V8.

ve 37-for controlling said supply,

One end of the supply pipe 36 is provided with an annu ar, flangesecured by bolts --38 to the outer face of the rear end wall -3-'- ofthe vat in ali nment withthc adjacent end of the channe --8-- near itsjunction with the bowl -10 to communi- -cate with an inlet nozzle --39which is 'imbedded in the adjacent end of the concrete bottom ofthe vatand secured to the inner face ofthe end Wall thereof by the same bolts-38', it being understood that the adjacent end wall :-3 is providedwith an opening 36;- connecting the pipe -36 to the outer end of thenozzle. a l

The nozzle extends inwardly from the end l wall entirel through theadjacent concrete portion o the bottom tothe adjacent end of the channel8 and uwhile its outer end may be circular to correspond to thecylindrical form of the pipe "-36 its inner end is preferably flattenedand flared laterally and provided with a laterall clongated opening 40just above the ottom of the channel so that whenthe waterpfor purposesis turned on it will be dis flushin 5 into theinterior of the channelinchar e out toithe sides as well asalong the bottom of theformf of afan-shaped stream spreading 1 said channel to efiecta thorough cleansingof all portions of'the interior ofqthetub from the inlet to the outlet.1

OZmnpingdeoice for bed plate cover The bed plate 15- is usually providedwith a senes of steel bars mounted side -.by side edgewise verticallywithin a suitable supporting box in the conrete bottom of the vatdirectly under the beater roll 13 to cooperate therewith in reducing thepaper" to the required consistency, the outer side wall of the vat beingprovided withan opening through which the bars may be removed orreplaced when desired.

This opening is, provided with a suitable cover plate 41', Figure 6,adapted to'be clamped against the outer faces ot the walls of theopening to form a liquid tight joint I therewith.

This cover 'plate41- is firmly held in its closed position by a pair ofcam levers 42 which are journaled upon pivotal studs 43 on the adjacentside Wall of the vat at opposite endsof the cover plate and are'providedwith cam faces 44 movable toward and out of engagement with adjacent camfaces 45 on the cover plate so that cured to the wa when turned to oneposition the cover plate will be ti htened and when turned to anf otherposition the cover plate will be released for removal by hand whendesired thereby affording an ex editions means for clamping andreleasing t e cover in and from its operative position.

W at I claim is:

1. A closure for shaft openin s in pa er stock containers, comprising aexible iaphragm having a gland for receiving the shaft.

2. A closure for shaft openings in paper stock containers, comprising aresilient iaphragm having a gland for receiving a shaft.

3. A closure for shaft openings in liquid containers, comprising 'a'flexible diaphragm having its-'mar 'inal edge adapted to be sefis'of theo ening and its central portion provided wit a gland for receiving theshaft.

4. A closure for shaft openings in liquid containers, comprising aflexible diaphragm having its marginal edge adapted to be secured to thewalls of the opening and its central portion provided with a gland forreceiving the shaft, said 1gland including a col lar having an internaannular groove and an annular packing rin in the groove.

5. A closure for sha containers comprising a resilient diaphragm havingits marginal edge adapted to be secured to the walls of the opening andits intermediate portion 0 ening and a glan secured to the diap ragmaround its opening for receiving the shaft.

6. In a beater engine, a vat having shaft openings in opposite sides, abeater roll having a shaft extending through said openings,

flexible diaphragms having their marginal ed es secured to the walls ofsaid openings h provided with glands for receiving the s a 7 In abeating engine having a beater roll, a doctor having a flexible wiperadapted to cooperate with the periphery of the roll for removing stocktherefrom.

- 8. In a beating en ine having a beater roll, a doctor having a fllzxible wiper adapted to cooperate with the periphery of the roll forremoving stock therefrom, and means for supporting the doctor adjustablyto compensate for wear of the wiper and roll.

9. In a beating engine having a beater roll provided with peripheral flybars, ;a doctor having a flexible wiper positioned to project into thepath of movement of the fly bars.

10. In a beating engine having a beater roll rovide'd with peripheralfly bars, a doctor aving a flexible wiper positioned to:

project into the path of movement of the fly bars, and adjustableedgewise to compensate for wear of the wiper.

11. A doctor for beater rolls comprising members havin openings inliquid (providedwith a shaft a flexible wiper and a clamping devicethereor. a V

12. A doctor for beater rolls com rising a flexible wiper, and clampingme rs or holding the wiper, one of said clamping a corrugated face forengaging the portion of the wiper between said members.

13. A doctor for beater rolls com rising a wi er composed of flexiblesteel ca les and he means for the wiper.

14. doctor for beater rolls com rising a wi er composed of flexiblesteel ca les and ho ding means for the wiper, said holding means withthe wiper thereon being adjustable to compensate for wear of the wiper.

15. A doctor for beater rolls com risin wiper composed of flexible steelcab es an holder therefor comprisin clamping mem bers oneof which isprovi ed with corrugations for receiving the cables.

16. In a beating engine, the combination with a tub havin a mid-featherand front and back channe connected around the ends of the mid-feather breturn channels,

of a back fall extending m the rear end of the mid feather across thefront channel and having its rear face sloped downwardly, rearwardly andlaterally to the bottom of the back channel and forming with theadjacent end of the tub,a continuous and unobstructed sweep-way for thewater and stock from the upper edge of the back fall to the back channe,the top edge of thebackfall bein inclined downwardly from the'outer weof the front channel to the midfeather, and a beater roll in the frontchannel adjacent the back fall. w 17. In a beating engine, thecombination with" a tub having semi-circular ends and a mid-featherformin front and back channels connected aroun the ends' of themidfeather by semi-circular channels, of a back-. fall extending fromone end of the mid feather across the front channel at the beg ofcurvature of the adjacent semi= circularend wall and forming with saidend wall an unobstructed passa e for the water and stock from thebackill to the back channel, the bottom wall of the back channel beinginclined downwardly from its junction with the backfall to its junctionwith the front channel, the front channel being inclined downwardly fromits junction with the back channel some distance beyond thecorresponding end of the mid-feather and III toward the backfall, and abeater roll adgradually from the top edge of the back-fall to theadjacent end of the back channel, and

a heater rOll in-the front channel adjacent the back-fall.

19. A beating engine comprising a tub having return ends andamid-feather form ing front and back channels connected around the endsof the mid-feather by return channels, a back-fall extending across therear end of the front channel and forming with the adjacent end Wall ofthe tub the adjacent. return channel, a heater roll adjacent theback-fall, the bottom of the front channel between the beater roll andthe other end of the mid-feather being at a lower level than the bottomof the remaining portions of the channels and provided with an outlet,and means for opening and closing the outlet.

20. In a beating engine, a tub having front and back channels, aback-fall across the rear end of the front channel having its rear faceinclined downwardly and laterally from its upper edge to the adjacentend of the back channel and forming with the adjacent end Wall of thetub a continuous and unobstructed spiral sweep-way connecting adjacentends of said channels, and a washout nozzle in the end of theback-channel near its junction with the sweepway arranged to direct acleansing fluid lengthwise of said baclcchannel and along the bottomthereof. 1

21. In a beating engine, a tub having re-' turn ends and a mid-featherforming front and back channels and return end channels,

a back-fall across the rear end of the front channel, and a heater rollin the front channel adjacent the back fall, the rear face of theback-fall and bottom of said channels being continuously .inclineddownwardly from the top edge of the back-fall along the back channel andreturn to a position in the front channel between the beater roll andopposite end of the mid-feather, means for introducing water into theend of the back channel adjacent the back fall, and means in the bottomof the front channel at its lowest level for withdrawing material fromthe tubl In witness whereof I have hereunto set my hand this 8th day ofMay, 1926.

JOHN D. HASKELL.

